2020120

素因数分解:

$2^3\times 5^1\times {\mathrm{50503}}^1$

素因数の和:50514

約数の個数: 16

約数和(自身を含む): 4545360

約数和(自身を除く): 2525240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 50503, 101006, 202012, 252515, 404024, 505030, 1010060, 2020120]

約数ペア:

[(1, 2020120), (2, 1010060), (4, 505030), (5, 404024), (8, 252515), (10, 202012), (20, 101006), (40, 50503)]